falling objects guard

8/14/2019 Falling Objects Guard

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Technical Description PR 722 BCrawler Tractor

Engine output 97 kW/132 HP

Operating weight 13.416.6 t/29,500 36,600 lbHydrostatic travel drive with electronic steering control

The Better Machine.

litronic


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Technical Description

EngineLiebherr-Diesel Engine __ D 924 T-ERating perDIN/ISO 3046 ________________ 132 HP (97 kW) at 2000 RPMDisplacement__________________ 6.7 l (409 cu.in)Bore/Stroke____________________ 122/142 mm (4.8/5.6 in)Design __________________________ 4 cylinder in-line engine, watercooled,

turbochargedInjection ________________________ dircet fuel injection with injection pump,

mechanical govenorFuel filter ______________________ pre-cleaner with water separator and fine

filtersLubrication ____________________ pressurized lube system with full flow

filter and integrated oil cooler, deep oilpan for inclinations, engine lubrication toan inclination of up to 45hto each side

Operating voltage____________ 24 VAlternator ______________________ 55 Amp.Starter____________________________ 6.6 kWCentral fuse box______________ 35 ABatterie __________________________ 110 Ah

Travel Control1 joystick lever__________with electronic control for all travel func-

tions: travel direction, speed, steering andcounter-rotation

Speed range 1____________ 0 5 km/h (0 3.1 mph)Speed range 2____________ 0 11 km/h (06.9 mph)Engine speedsensing control ________ electronic regulation assures constant bal-

ance between travel speed and necessarydrawbar pull through engine speed sensingavoiding engine overload, even in partialload range

Straight line travel ____ electronically controlledParking/emergency

brake________________________ automatically applied after the joystick leveris put in neutral position

Safety lever ______________ inactivates complete travel and workinghydraulic circuit and automatically activatesparking brake

Emergency shut-off __ push button on instrument panel immediate-ly activates parking and emergency brake

Implement HydraulicHydraulic system ______ load sensing proportional pump flow control,

variable flow swash plate piston pump andpressure compensation

Pump flow ________________ max. 156 l/min (41 gpm)

Pressure limitation ____ max. 160 bar (2300 PSI)Control valve ____________ 2 spool control block, can be expanded to

5 circuitsFilter system ____________ return filter with magnetic rod in hydraulic

tankControl ____________________ single servo-assisted joystick lever for blade

hoist and tilt functions, electrically controlledblade float and quick drop

AttachmentsFront side ________________ straight blade or 6-way-bladeRear side __________________ ripper, hydraulic winch or swinging drawbarPivot points ______________ maintenance-free, with hardened and

polished pins and bushings

Operators CompartmentCab __________________________ resiliently mounted, with integrated ROPS

(Roll Over Protective Structure, SAE J 1040/ISO 3471) and FOPS (Falling Objects Protec-

tive Structure, SAE J 231/ISO 3449), can betilted with handpump to 40hto the rear foraccessibility to machine components, diago-nally arranged doors, all round safety glass

Operators seat__________ fully adjustable, suspended swing seat, ad-justable to operator weight

Instrument panel ______ comprehensive instrument panel on the rightside of the operators seat

Ventilation ________________ pressurized filtered air ventilation, 3 stageblower, 8 air nozzles, sliding windows on

both sides and in the rearHeater ______________________ hot water heaterSound levelat operators ear ________ 82 dB(A) on job location, conforms to EG

standard 86/662/EWG

Refill CapacitiesFuel tank ____________________________________________________________________ 310 l/82 galCooling system ____________________________________________________________ 52 l/14 galEngine oil ______________________________________________________________________ 18 l/5 galSplitterbox __________________________________________________________________ 2.5 l/0.6 galHydraulic tank ____________________________________________________________ 178 l/47 galFinal drive, each __________________________________________________________ 8.5 l/2.2 gal

Travel DriveDesign __________________________ independent hydrostatic drive of travel gearPump flow ______________________ max. 154 l/min (40.5 gpm)

Max. pressure ________________ adjusted to 420 bar (6090 PSI)Travel speed __________________ 011 km/h (06.8 mph) infinitely varia-ble, forward and reverse

Steering ________________________ hydrostaticService brake__________________ hydrostaticParking/emergency

brake ____________________________ automatic multi disc brake in final drivesCooling system ______________ hydraulic oil cooler with separate cooling

circuit with gear pump and front mountedcooler

Filter system __________________ cartridge fine filters in the cooling circuitFinal Drive______________________ 2 stage planetary reduction gear

Track FrameDesign __________________________ maintenance-free standard or long (L) or

low ground pressure (M) tractor-typetrack frames

Mount ____________________________ elastic components at a separate pivotshaft and an oscillating equalizer bar,oscillation 3h

Chains __________________________ sealed or lubricated, track chain tensionvia grease tensioner and hydraulic cylin-ders, single grouser pads

Chain links ____________________ 43 (47 on PR 722 B and PR 722 B-M)Sprockets ______________________ 9 replaceable segmentsTrack rollers __________________ 7 (8 on PR 722 B-L and PR 722 B-M)Carrier rollers ________________ 1 (2 on PR 722 B-L and PR 722 B-M)

Drawbar pull kN200

150

171

100

50

0

Travel speed km/h0 1 2 3 4 5 6 7 8 9 10 11 12


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Dimensions

D

C

B

A

E

F

G

H

Basic Machine

PR 722 B PR 722 B-L PR 722 B-M

ft-in/mm ft-in/mm ft-in/mm

A Height over cab 10 2/3100 10 2/3100 10 2/3100B Height over engine cover 611/2100 6 1/2100 6 1/2100C Overall length without attachments 12 9/3890 1210/3910 1210/3910D Distance idler/sprocket centre 8 5/2575 9 7/2925 9 7/2925E Height of grouser 23/16/56 23/16/56 23/16/56F Track gauge 511/1800 511/56/1800/1680* 610/2084G Ground clearance 1 3/ 370 1 3/ 370 1 3/ 370H Width over frame mounting trunions 8 8/2648 8 8/83/2648/2528* 10 8/3248

Overall width withpad size 20/508 mm 7 9/2366 79/7/2366/2246*

22/560 mm 7 4/2246* 24/610 mm 711/2410 711/2410 28/711 mm - 9 2/279532/812 mm - 9 6/289636/914 mm - 910/2998

Ground contact area attrack pad width 20/508 mm 28.2 sq.ft/2.62 m 2 31.9 sq.ft/2.97 m2

22/560 mm 35.3 sq.ft/3.28 m2 24/610 mm 33.8 sq.ft/3.14 m2 38.4 sq.ft/3.57 m2 28/711 mm 44.7 sq.ft/4.16 m2

32/812 mm 51.1 sq.ft/4.75 m2

36/914 mm 57.6 sq.ft/5.35 m2

* only for PR 722 B-L with 6 way blade and outside mounted C-frame


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Attachments

H

U

T

N

K

P

A

B

Straight Blade

PR 722 B PR 722 B-L PR 722 B-M

Blade capacity 3.7 cuyd/2.85 m3 3.7 cuyd/2.85 m3 3.9 cuyd/3.04 m3 4.1 cuyd/3.13 m3

Dimensions ft-in/mm ft-in/mm ft-in/mm ft-in/mmA Blade height 3 7/1100 3 7/1100 3 5/1050 3 5/1050B Blade width 910/3000 910/3000 11 6/3500 1110/3600H Blade lifting height 3 2/ 950 3 2/ 960 3 2/ 960 3 2/ 960K Blade drop below ground 1 6/ 445 1 6/ 450 1 6/ 450 1 6/ 450P Max. blade pitch 10h 10h 10h 10hT Max. blade tilt 111/ 580 111/ 580 110/ 570 110/ 570U Overall length 15 5/4695 16 7/5045 16 7/5045 16 7/5045N Track pad width 20/508/24/610 20/508/24/610 28/711/32/812 28/711/32/812/

36/914

Operating Weights lb/kg lb/kg lb/kg lb/kg Basic machine with bladeand track pad width of 20/508 mm 29,400/13,350 30,300/13,750

24/610 mm 29,900/13,550 30,900/14,000 28/711 mm 31,600/14,350 31,700/14,40032/812 mm 32,100/14,550 32,200/14,60036/914 mm 32,700/14,850

Ground Pressure PSI/kg/cm2 PSI/kg/cm2 PSI/kg/cm2 PSI/kg/cm2

Basic machine with bladeand track pad width of 20/508 mm 7.25/0.51 6.54/0.46

24/610 mm 6.11/0.43 5.54/0.39 28/711 mm 4.83/0.34 4.97/0.3532/812 mm 4.26/0.30 4.41/0.3136/914 mm 3.98/0.28


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U

T

N

A

B

U1

B1

Y

H

K

P

6-Way-Blade With Inside Mounted U-frame

PR 722 B-L PR 722 B-M

Blade capacity 4.1 cuyd/3.10 m3 4.1 cuyd/3.11 m3

Dimensions ft-in/mm ft-in/mmA Blade height 3 9/1150 3 5/1050B Blade width 10 6/3200 12 5/3790B1 Transport width 9 8/2950 11 5/3490H Blade lifting height 3 6/1060 3 6/1060K Blade drop below ground 1 7/ 480 1 7/ 480T Max. blade tilt 1 7/ 475 110/ 560P Max. blade pitch 5h 5hY Blade angle 23 h 23hU Overall length, blade straight 17 2/5220 17 /5190U1 Overall length, blade angled 19 1/5805 19 4/5895N Track pad width 20/508/24/610 28/711/32/812/36/914

Operating Weights lb/kg lb/kg Basic machine with bladeand track pad width of 20/508 mm 30,400/13,800

24/610 mm 31,000/14,050 28/711 mm 31,500/14,300

32/812 mm 32,100/14,55036/914 mm 32,600/14,800

Ground Pressures PSI/kg/cm2 PSI/kg/cm2

Basic machine with bladeand track pad width of 20/508 mm 6.54/0.46

24/610 mm 5.54/0.39 28/711 mm 4.83/0.3432/812 mm 4.41/0.3136/914 mm 3.98/0.28


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H

U

T

N

K

P

A

B

U1

B1

Y

G R

6-Way-Blade With Outside Mounted C-frame

We recommend using the6-way-blade only with rearmounted attachment orcounterweight.

Available only with specialtrack gauge 1680 mm.

PR 722 B-L

Blade capacity 4.1 cu.yd/3.10 m3

Dimensions ft-in/mmA Height of blade 3 9/1150B Width of blade 10 6/3200B1 Transport width 910/3000H Blade lifting height 4 2/1260K Blade drop below ground 1 8/ 515P Max. blade pitch 5hBlade angled 21 hT Max. blade tilt 1 7/ 475R Width over C-frame 8 6/2595U Overall length, blade straight 18 1/5505U1 Overall length, blade angled 1911/6065N Track pad width 20/508/22/560

Operating Weight lb/kgBasic machine with blade, canopyand track pads 20/560 mm 33,700/15,300

and track pads 22/560 mm 34,000/15,400

Ground Pressure PSI/kg/cm2

Basic machine with blade, canopyand track pads 20/560 7.40/0.52and track pads 22/560 6.69/0.47

Attachments


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C

E

B

AD

X

H

F G

H

Ripper

C

G

B

HA

I

J

E

D

F

Winch

Dimensions ft-in/mmA Height, cable exit 39/1140B Overall length 21/ 635C Height drawbar 19/ 530D Drum diameter 81/2/ 210E Coiling width 9/ 230F Flange diameter 16/ 460G Distance to center of drum 14/ 405H Height to drum center 34/1025I Total height 45/1355J Hook radius of winch 16/ 465

Weight lb/kgWinch complete 2650/1200

Max. line pull: 67,400 lb/300 kN (30,6 t)Max. line speed: 0 315 ft/min; 0 96 m/min.Cable size: 7/8/22 mmCable length: 164 ft/50 m

Dimensions ft-in/mmA Ripping depth 16/ 455B Lifting height 19/ 525C Overall length attachment raised 31/ 945D Ground clearance below toolbar 51/2/ 143E Overall length

attachment lowered 41/1235F Ripping width 69/2060G Toolbar width 73/2220H Distance between teeth 33/1000X Slope angle 30 h

Weight lb/kgRipper complete 2425/1100

3-shank rigid type


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Basic machineStandard Option

Cover engine hoodCover oil coolerExhaust catalyst xTow switch NEW! xTowing hitch rear xTowing lug front xForestry equipment x

Woodchip handling equipmentCoal handling equipmentLandfill equipment xBattery compartment lockable xFilling with environmental friendly oil xFilling with oil SAE 10 x

Filling with oil SAE 30x

Tank guard complete xTank guard bottom xRefuelling pump electrical xBelly pans heavy duty xFire supression system engine compartment xConnector external electric power xCold start device etherCold start device glow plug xRadiator coarse mesh xRadiator guard 2-piece, hinged xLiebherr Diesel engine xFan hydraulically driven NEW! xFan guard xEngine oil cooler xEngine doors perforated xEngine doors hinged, lockable xLugs for crane lifting xPlatform rear xSpecial paint xSettling pund equipment x

Fuel water separatorx

Fuel water separator with electric heater xAir filter dry-type, dual step x

Wear guard for radiator xPrecleaner with automatic dust ejector xPreheater for engine electric xTool kit in batteries compartment x

Travel driveParking brake automatic xFunction control automatic xControl single lever xLoad limit control electronic xTravel control electronic xTravel control 2-speed xTravel control 3-speed NEW! xHydrostatic travel drive xEmergency stop xOil cooler xFinal drives planetary gear x

Safety lever x

Electrical systemStarter motor 6,6 kW xStarter motor 9 kW

Working lights rear 2 units xWorking lights front 2 units xBattery main switch electric xBatteries, heavy duty cold start xOn-board system 24 V xAlternator 55 A xAlternator 80 A xBack-up alarm xBeacon xHorn xStart lock electronic xLights additional rear 2 units xLigths additional on lift cylinders xLights additional on engine hood x

Operators cabStandard Option

Stowing box xArmrest adjustable xAsh tray xRear mirror outside left xPressurizer with air filter xOperators seat 6-way adjustable xOperators seat air suspended xFire extinguisher xDome light xCoat hook xAir conditioner xFM radio xRadio installation kit x

ROPS-canopyx

ROPS/FOPS-cab sound supressed xRear mirror inside x

Windscreen washer xWindscreen wipers front, rear, doors xSliding windows xProtective grids for windows xSafety glass tinted xSun blinds xExtra cab heater xCabin heater warm water x

Instruments IndicatorsBattery charging xHour meter xElectronic control x

Speed range xEngine oil pressure x

Water temperature xOil pressure cooling circuit xOil level final drives xFloat position blade xFuel level xContamination hydraulic filter xContamination air filter xCold start Diesel engine x

Implement hydraulicHydraulic control 6-way-blade xHydraulic control ripper xHydraulic control winch x

Variable flow pump, load sensing xOil filter with strainer in hydraulic tank xBlade quick drop xBlade float position xControl block for 2 circuits xHydraulic tank oil level control xHydraulic servo control x

AttachmentsMounting plate rear for external tools xDrawbar rear swivelling xDrawbar rear rigid xCounterweight rear xRipper single shankRipper 3 shank xRipper 5 shank xBumper rear x

Rake for landclearing6-way-blade inside mounted x6-way-blade outside mounted x6-way-blade with hinged corners xBlade straight blade xBlade semi-U-blade xBlade trimming blade xBlade U-bladeBlade angle blade xBlade woodchip-U-bladeBlade coal-U-bladeBlade landfill blade xPush plate x

Winch xRock guard for semi-U-bladeSpill plate x

Wear plates for push arms xWear plates for blades

UndercarriageResilient mounting xTrack shoes extreme service (ESS)Track frame closed xSprocket segments bolt-on xMaster link 2 piece xTrack shoes with relief holes xTracks oil lubricated xTrack guide center part xTrack guard xUndercarriage extented xUndercarriage low ground pressure xUndercarriage standard xUndercarriage extra wide tracksTrack frames oscillating +/- 3h xPivot shaft separate xSprocket segments with recesses x

LIEBHERR-WERK TELFS GMBH, Hans-Liebherr-Strae 35, A-6410 Telfs, (05262) 600, Fax (05262) 60072www.liebherr.com, e-Mail: [email protected]

With compliments:

LWT/VM8434216-1-01.0

2

PrintedinGermanybyEberl.

Illustrationsanddatamaydifferfromstandardequipment.Subjecttochangewithoutnotice.

falling objects guard

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